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Thomas


Last seen: 11 månader ago |  Active since 2011

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Love MATLAB :) Work with Wireless Sensor Networks, Medical Image processing (MRI,fMRi,DTI), High Performance Computing at UAB Professional Interests: Parallel Computing, Supercomputing, Wireless sensor networks

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Answered
Storing values from nested FOR loop (array only saves last run of results)
for i=1:4 for j=1:3 answerA(i,j)=i*1; answerB(i,j)=j*10; % tableA(i,:)=[answerA answerB] ...

ungefär 6 år ago | 6

| accepted

Answered
how to find out if a number is even or not
You could perform a modulo division mod(4,2) % Even number ans = 0 mod(5,2) % Odd number ans =1 Answer wi...

ungefär 6 år ago | 10

| accepted

Answered
Counting objects in an image
You could use techniques shown in many MATLAB image processing demos.

ungefär 7 år ago | 0

Answered
how to save a string as a filename?
Maybe something like this for number=1:10 file_name = sprintf('case study_#%d.txt',number); save(file_name,....

nästan 8 år ago | 3

| accepted

Answered
Distributed and parallel computing without DCS
Hi Chuck, In order to perform distributed computing across multiple computers you need the DCS license. We have DCS running ...

mer än 9 år ago | 1

Answered
Creating sub-matrices using one matrix
Look at the examples given here <http://stackoverflow.com/questions/13091193/how-to-select-a-submatrix-not-in-any-particular-pat...

mer än 10 år ago | 0

Answered
matrix generation 1 to n*n or interval
n=10; a=1:n*n; out=reshape(a,n,n)'

nästan 11 år ago | 2

Answered
Finding structure array entries with certain values
You could use something like this strs={'1' '2' '3' '4'} ind=find(ismember(strs,'4')) >> ind = 4

nästan 11 år ago | 1

Answered
Datenum: how many seconds in a day?
IF my guess is right matlab considers every day as 86400 seconds.. only in leap years does datenum make sure an extra day is add...

nästan 11 år ago | 1

Answered
Not enough input arguments
Are you giving it u as an array? try running it like this.. works fine.. u=1:5; cost_function(u) output is J =...

nästan 11 år ago | 0

Answered
Delete duplicate rows from a large cell array
wit_dup={'2000-01-10 1:00' 'HCM' '268' '20' '260' '2345' '0' '90' '2000-01-10 1:00' 'HCM' '268' '20' '260' '2345' '0' '...

nästan 11 år ago | 0

| accepted

Answered
Is it possible to save . mat <4095x1384x2 double> file to txt file?
You can save it as slices data1=data(:,:,1); data2=data(:,:,2); and then save or he alternative would be to use resha...

nästan 11 år ago | 0

Answered
How to read DICOM RT Structure?
Might want to try <https://github.com/ulrikls/dicomrt2matlab> or try RSInfo=dicominfo('RS.ZZ_YUNINN_.dcm'); dicom...

nästan 11 år ago | 4

| accepted

Answered
İ need to switch red and blue colors in RGB picture. How i can do that? my version of matlab is R2013a
Similar question: <http://www.mathworks.com/matlabcentral/answers/100476> or ii=imread('1.jpg'); % load original ...

nästan 11 år ago | 2

Answered
Doing a plot within a FOR LOOP
some thing like this? clear for i = 0.04 : 0.01 : 0.06 B = -20000 + 57300*((1+i)^-20) figure() ...

nästan 11 år ago | 1

| accepted

Answered
How can I make subplots larger?
Do you just want to make the figure taller? x=1:10; y1=x.^0.5; y2=x; y3=x.^2; y4=x.^3; figure1=fig...

nästan 11 år ago | 4

| accepted

Answered
Undefined function 'acker' for input arguments of type 'double'.
acker is the old pole placement function using Ackerman's formula from the control system toolbox.. try which acker ...

nästan 11 år ago | 0

Answered
can anyone provide me the code for motion detection in a video????????
Many of them are available in file exchange <http://www.mathworks.com/matlabcentral/fileexchange/18151-motion-detection-in-a...

nästan 11 år ago | 1

Answered
how to get average of more than one (atleast 2288) images?
An example is given here <http://stackoverflow.com/questions/5689639/how-to-average-multiple-images-in-matlab/14222792#14222792>...

nästan 11 år ago | 0

Answered
How to use parfor for fast matrix calculations with different dimensions???
You do not need to use 'parfor' or even 'for' to get to what you are trying (i.e. find 1's in the matrix). Is there a specific r...

nästan 11 år ago | 0

Answered
How can I find the indices of a vector?
[r,c]=find(A>=0.123)

nästan 11 år ago | 0

Answered
Is it possible to downgrade MATLAB?
You should get access to earlier releases if you buy a current license. Mine shows me as far back as R11.1 available for downlo...

nästan 11 år ago | 0

| accepted

Answered
swap columns of a matrix
You could also use out= fliplr(k_minus) This flips the matrix left-right <http://www.mathworks.com/help/matlab/ref/fliplr...

nästan 11 år ago | 2

| accepted

Answered
I'm trying to make a function to create a chirp signal with a clip distortion, when I run the function, It won't play and just displays columns, where is the problem?
run your code as follows a=SignalGen(10,200,1000,5,3,100); % suppress output Signal sound(a) % to hear

nästan 11 år ago | 0

| accepted

Answered
Surface area of a 3D-plot from a matrix.
I do not think MALTAB has a built-in function. (I might be wrong though) However a similar question has been answered here <ht...

nästan 11 år ago | 1

Answered
how to find elements in an array
x = 1:100; y = 201:300; a=[ 215 250 283]; c=ismember(y,a) x(c) should give you 15 50 83

nästan 11 år ago | 1

Answered
feval(symengine, 'partfrac' command error
You forgot the * between 14 and x feval(symengine, 'partfrac', 4/ (((x - 7)^2 + 4^2 )* (x^2+14*x + 65)))

nästan 11 år ago | 1

| accepted

Answered
How to change Elements in Matrix per row depending on their size in reference to a particular Element (without loop)
A laborious way of doing it.. B=[A(1,:);A(3,:);A(4,:)]; B(B >=3)=3; C=[A(2,:);A(5,:)]; C(C >=2)=2; Out=...

nästan 11 år ago | 0

Answered
How do I reshape a dataset?
a= rand (2,4) size(a) b=a' size(b) Is this what you are looking for ? or b= reshape(a,4,[]); ...

nästan 11 år ago | 0

Answered
How to add a folder permanently to matlab path?
You can put the addpath statement to startup.m Heres how to create startup.m <http://www.mathworks.com/help/matlab/ref/startu...

nästan 11 år ago | 3

| accepted

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